CN1971125A - Solar and AC charging dual-purpose energy-saving flashlight control circuit - Google Patents
Solar and AC charging dual-purpose energy-saving flashlight control circuit Download PDFInfo
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- CN1971125A CN1971125A CNA2006100982636A CN200610098263A CN1971125A CN 1971125 A CN1971125 A CN 1971125A CN A2006100982636 A CNA2006100982636 A CN A2006100982636A CN 200610098263 A CN200610098263 A CN 200610098263A CN 1971125 A CN1971125 A CN 1971125A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The invention provides a control circuit for double-purpose energy-saving flashlight of solar energy and AC charging, which is used to solve the problem that prior flashlight is supplied by one energy resource or the battery should be exchanged often, comprising transformation module of switch power supply, module of charging control and indication, module of LED driven circuit, module of LED lighting circuit, solar battery board and the switch of flashlight. AC with 200v is connected with the input of exchanging module of switch power supply. The first input of module of charging control and indication is connected with the output of exchanging module of switch power supply. The input of solar battery board is connected with the second input of module of charging control and indication. The output of module of charging control and indication is connected with one end of flashlight switch and the other end of flashlight switch is connected with the input of module of LED driven circuit and the output of module of LED driven circuit is connected with the input of module of LED lighting circuit. It can be charged by solar battery or AC.
Description
Technical field
The present invention relates to flashlight control circuit, particularly solar energy/AC charging dual-purpose energy-saving flashlight control circuit.
Background technology
In the control circuit of flashlight in the past, have following deficiency: the control circuit in the flashlight that 1) has has only the solar panel live part.2) control circuit in the flashlight that has has only simple capacitor step-down electric main charge function.3) control circuit in the flashlight that also has in use needs often to change battery.Therefore, make these flashlights exist a kind of energy supply of single dependence or needs often to change the drawback of battery, can not adapt to the defective of environment for use preferably.
Summary of the invention
The objective of the invention is to solve the problem that above-mentioned flashlight control circuit exists, a kind of solar energy/AC charging dual-purpose energy-saving flashlight control circuit that has is provided, it is the available again electric main auxiliary charging of available rechargeable solar battery, and it is wider and range of application is wideer to make it adapt to environment for use.
The present invention adopts following technical scheme to solve technical problem: a kind of solar energy/AC charging dual-purpose energy-saving flashlight control circuit, comprise the Switching Power Supply conversion module, charging control and indicating module, LED driving circuit module (hereinafter to be referred as the led drive circuit module), lumination of light emitting diode circuit module (hereinafter to be referred as LED illuminating circuit module), solar cell plate module and flashlight switch are formed, the alternating current 220V civil power connects the input of Switching Power Supply conversion module, the output of Switching Power Supply conversion module connects the first input end of charging control and indicating module, the input of solar cell plate module connects second input of charging control and indicating module, one end of the output catcher torch switch of charging control and indicating module, the input of another termination diode drive circuit module of flashlight switch, the output of led drive circuit module connects the input of LED illuminating circuit module.
Compared with prior art, the present invention has following advantage: 1) used regenerative resource-rechargeable solar battery technology, accomplished environmental protection, energy-conservation use flashlight.2) use the high frequency switch power converter technique, made AC charging efficient increase greatly.Reached the effect of energy savings.3) use DC-DC (hereinafter to be referred as DC/DC) converter technique efficiently, accomplished the effect that cell voltage is made full use of.4) used the superhigh brightness LED lighting engineering.Have luminous efficiency height, long service life, do not produce heat.
Description of drawings
Fig. 1 is solar energy/AC charging dual-purpose energy-saving flashlight control circuit theory diagram.
Fig. 2 is solar energy/AC charging dual-purpose energy-saving flashlight control circuit physical circuit figure.
Fig. 3 (a) is the schematic block circuit diagram of Switching Power Supply conversion module I.
Fig. 3 (b) is the physical circuit figure of Switching Power Supply conversion module I.
Fig. 4 (a) is the schematic block circuit diagram of charging control and indicating module II.
Fig. 4 (b) is the physical circuit figure of charging control and indicating module II.
Fig. 5 (a) is the schematic block circuit diagram of led drive circuit module ii I.
Fig. 5 (b) is the physical circuit figure of led drive circuit module ii I.
Fig. 6 (a) is the schematic block circuit diagram of LED illuminating circuit module I V.
Fig. 6 (b) is LED illuminating circuit module I V physical circuit figure.
Fig. 7 (a) is the schematic block circuit diagram of solar cell plate module V.
Fig. 7 (b) is the physical circuit figure of solar cell plate module V.
The specific embodiment
As shown in Figure 1, a kind of solar energy/AC charging dual-purpose energy-saving flashlight control circuit, comprise Switching Power Supply conversion module I, charging control and indicating module II, led drive circuit module ii I, LED illuminating circuit module I V, solar cell plate module V and flashlight switch IV form, the output of Switching Power Supply conversion module I connects the first input end of charging control and indicating module II, the input of solar cell plate module V connects second input of charging control and indicating module II, the end of the output catcher torch switch IV of charging control and indicating module II, the input of another termination led drive circuit module ii I of flashlight switch IV, the output of led drive circuit module ii I connects the input of LED illuminating circuit module I V.
Shown in Fig. 3 (a), above-mentioned Switching Power Supply conversion module I comprises rectification and filter circuit 101, start-up circuit 102, high frequency transformer 103, switch triode 104 and spike absorb circuit 105, the alternating current 220V civil power connects the input of rectification and filter circuit 101, its output connects the input of start-up circuit 102 and the first input end of high frequency transformer 103 respectively, the output of start-up circuit 102 connects the first input end of switch triode 104, the output of switch triode 104 connects the input that spike absorbs circuit 105, the output of spike absorption circuit 105 connects second input of high frequency transformer 103, the DC voltage of high frequency transformer and feedback voltage connect the second and the 3rd input of switch triode 104 respectively, high frequency transformer 103 output high frequency low voltage voltage signals.
Shown in Fig. 4 (a), above-mentioned charging control and indicating module II comprise secondary current rectifying and wave filtering circuit 201, current-limiting circuit 202, reference voltage circuit 203, charging control triode 204, be full of indication diode 205, charging indication diode 206, bolster diode 207, rechargeable battery 208 and step-down current-limiting circuit 209, connect the first input end of secondary current rectifying and wave filtering circuit 201 from the next high frequency low voltage signal of above-mentioned Switching Power Supply conversion module I, the input of the first output termination step-down current-limiting circuit 209 of secondary current rectifying and wave filtering circuit 201, the input of its second output termination current-limiting circuit 202, the input of its 3rd output termination charging indication diode 206, the input of the first output termination reference voltage circuit 203 of step-down current-limiting circuit 209, the first input end of its second output termination charging control triode 204, second input of an output termination charging control triode 204 of current-limiting circuit 202, its another output termination is full of the input of indication diode 205, an input of the output connection pad pillow diode 207 of charging control triode 204, be full of another input of the output connection pad pillow diode 207 of indication diode 205, the output of bolster diode 207 connects the input of rechargeable battery 208, the output of rechargeable battery 208 connects second input of secondary current rectifying and wave filtering circuit 201, the output of reference voltage circuit 203 connects the 3rd input of secondary current rectifying and wave filtering circuit 201, and charging indication diode 206 connects the four-input terminal of secondary current rectifying and wave filtering circuit 201.
Shown in Fig. 5 (a), above-mentioned led drive circuit module ii I comprises energy storage inductor 301, DC-DC converter 302, fly-wheel diode 303, filter capacitor 304, connect the input of energy storage inductor 301 from the signal of switch VI, the output termination DC-DC converter 302 of energy storage inductor 301 and the input of fly-wheel diode 303, the output of DC-DC converter 302 is connected with the output of fly-wheel diode 303, receive the input of filter capacitor 304, output output driver module (IV) signal of fly-wheel diode 303.
Operation principle to Fig. 2 describes below.Circuit is made of six parts.Wherein part i is a Switching Power Supply conversion module part, and its task is to be transformed to DC voltage about DC 5V with exchanging the AC220V civil power, for the usefulness of battery charging.Part ii is charging control and indicating module part, and this part has the automatic stop of being full of and trickle charge control and charged state deixis.Also promptly: at the charging initial stage, it is big that charging current is wanted, and to reach the purpose of quick charge, along with the passing in charging interval, charging current reduces gradually, also will have trickle charge and deixis after being full of.III partly is the led drive circuit module section, also both DC/DC drive changing portion branch, this partial circuit can be when cell voltage changes in 0.9V～4.2V scope, output voltage stabilization in 3.05V～3.3V scope, its usefulness be one piece of special LED drive IC ME2100A.The IV partial circuit is a LED illuminating circuit module section, and it is made up of 9 pieces of white ultra-high brightness LEDs, and this partial circuit independently is divided in the lamp holder of flashlight.V partly is the solar panel module section, and its task is that the transform light energy of the sun is charged for afterwards giving the energy-storage battery in the flashlight, and IV partly is the flashlight switch part, and flashlight is lighted during switch closure, and after the disconnection, flashlight extinguishes.
The schematic block circuit diagram of Switching Power Supply conversion module I is shown in Fig. 3 a, and electric main will exchange the AC220V civil power and become direct current and be about DC310V voltage behind rectification and filter circuit 101, supply with start-up circuit 102 and high frequency transformer 103 respectively.Be added in respectively on the switch triode 104 through the voltage that high frequency transformer comes out, supply voltage is transformed to the low-voltage of high frequency alternation, for the usefulness of flashlight charging.The effect that the high frequency peaking voltage absorbs circuit 105 is to eliminate high frequency, the high pressure reverse impulse that is produced between the off period by switch triode 104, avoids switching tube 104 to be reversed puncture.
Physical circuit is shown in Fig. 3 b, and its operation principle is as follows: the AC220V electric main is through resistance R 0 current limliting, step-down, and the main winding that is added in switch transformer T1 after D1～D4 full-wave rectification is 1. → 2. to the colelctor electrode C of switching tube Q1; Another road makes the conducting of Q1 positively biased through the base stage b of starting resistance R1, R3 → Q1, the induced voltage that 3. produces on 4. at the feedback winding of T1 simultaneously, and 3. polarity for bearing; 4. just, this voltage also adds the base stage b that causes Q1 in the lump through resistance R 9, R8 and speed-up capacitor C2 acting in conjunction.Under the acting in conjunction of above-mentioned voltage, Q1 is rapid, and conducting is saturated.When Q1 was saturated, the magnetic flux phi among the switch transformer T1 reached maximum; Magnetic flux increment ΔΦ is zero.This each process is exactly that " " gives birth to the process of " magnetic ", also be " " can with " magnetic " can form store the process of " energy ".Subsequently, magnetic field rapidly disappears, and in the process that magnetic field disappears, magnetic flux increment ΔΦ is negative maximum, and the induced potential polar orientation that produces in each winding simultaneously is also opposite.This be again " magnetic " can generate " " can process, also be " magnetic " can with " " can form discharge the process of " energy ".In this process, the induced potential polarity that each winding of T1 produces is: 1. 2. just bearing; 3. just 4. negative; 5. 7. just bearing.1. negative 2. positive induced potential and easy breakdown switch pipe Q1.For preventing that Q1 from puncturing, added the slicing inhibition circuit that D2, C1, R3 form in the circuit.3. just 4. negative feedback voltage has impelled instead ending partially rapidly of Q1 on the one hand; Charge to C4 on the other hand.The effect of C4 be for Q1 anti-partially by the time voltage source is provided, Q1 is ended enough energy.T1 3. → 4. → loop of the be emitter junction of R9//C2 → R8 → Q1 → 3. in, the forward that the polarity of the induced potential that produces in 3.～4. winding of T1 is not stopped, reverse, forward, reverse ... that goes round and begins again changing, thus caused Q1 being operated in repeatedly saturated, by, saturated, end ... the switch oscillatory regime under.In other words: the function of circuit is that electric energy generates magnetic energy; Magnetic energy generates electric energy again ... the cyclic transformation process.DW1, D10 in the circuit have constituted clamp circuit, the voltage clamp that makes the Q1 base stage b when just powering on is in the algebraical sum scope of the forward conduction voltage drop value of the voltage stabilizing value of DW1 and D10, be 9.1V+0.7V in this circuit, purpose is to avoid Q1 to be in conducting state out of control always.5. negative 7. positive induced potential is supplied with the usefulness of battery charge after D7 rectification, C3 filtering.Also be charging control and the indicating module II that supplies with Fig. 2.
The circuit block diagram of charging control and indicating module II is shown in Fig. 4 a, divides three the tunnel: the one tunnel through the base stage power supply to reference voltage circuit 203 and charging control triode 204 of step-down current-limiting circuit 209 current limlitings, step-down through secondary current rectifying and wave filtering circuit 201 after by the high frequency low-voltage of switch transformer output, keeping charges controls the condition of work of triode 204; The second the road supplies with charging indication diode 206 as operating voltage, does the charging luminous indicating lamp and uses; Third Road is added to the colelctor electrode of charging control triode 204 and makes charging voltage after current-limiting circuit 202 current limlitings, simultaneously to the operating voltage that is full of electric indicator lamp.
Physical circuit is shown in Fig. 4 b, and R4, RW1, U1 form reference voltage source, regulates the resistance value that changes RW1, can change the reference voltage of Q2 base stage b.During with different rechargeable battery, its reference voltage is also inequality.When this flashlight adopted the 1.2V nickel-hydrogen chargeable cell, it was that 2.86V gets final product that adjusting RW1 makes the voltage of the base stage b of Q2.R5 is a charging current limiter resistance, and R5+R6 has constituted the trickle charge current-limiting resistance, can distinguish the maximum charging current and the trickle-charge current of limit battery.Q2 is charging voltage adjustment, control valve, and Q2 conducting when charging voltage is lower than the battery charging voltage of setting can be fast to battery charge; Q2 closes gradually when charging voltage is full of voltage near battery, thereby charging current progressively reduces, and when battery was full of electricity, Q2 ended, and enters the trickle charge state, overcharges to guarantee that battery is full of and does not produce.D8 lights when battery is full of electricity for being full of indicator lamp.D9 is the power work indicator lamp.Its principle is as follows: after flashlight was inserted the AC220V civil power, D9 lighted, and the expression flashlight is operated under the charged state.At this moment because cell voltage is lower than 1.42V, again because the voltage of the base stage b of Q2 is set in 2.86V, thus basic emitter voltage Vbe＞0.7V of Q2 and conducting, charging current through D7 → R5 → Q2 → C → E → D5 to battery charge.Along with the prolongation in charging interval, the voltage of battery raises gradually, and pressure reduction progressively reduces between the emitter junction knot of Q2, and the conducting degree of Q2 also reduces gradually, and charging current both reduced thereupon.When raising, cell voltage causes 1.42V when above, basic emitter voltage Vbe＜0.7V of Q2, and Q2 ends, and main charge circuit stops to battery charge.This moment, battery entered the trickle charge state.Trickle-charge current is made of two branch roads, and the one tunnel b → e through D7 → R4 → Q2 → D5 → battery → T1 5.; Another road walks that D7 → R5 → D8 → R6 battery → T1 5..
D8 is full of electricity indication usefulness as battery here, and its positive pole meets the colelctor electrode C of Q2.Operation principle is as follows: in Q2 conducting charging process, the D8 both end voltage is lower than its conducting voltage, thus it end, not luminous; When Q2 ends, D8 both end voltage＞1.8V (LED lights voltage), so luminous, the expression cell voltage is full of.
The schematic block circuit diagram of led drive circuit module ii I is shown in Fig. 5 a, and the voltage of rechargeable battery is added on the energy storage inductor 301 through switch 601, powers to DC/DC converter 302 and fly-wheel diode 303 behind energy storage inductor 301.Voltage with rechargeable battery 208 under the acting in conjunction of above-mentioned device is caused more than the 3V by the 1.2V rising, after filter capacitor 304 filtering the output of the voltage after the DC/DC conversion is caused LED light emitting diode 401 again.
Its physical circuit is shown in Fig. 5 (b), and the cell voltage of being come in by flashlight switch module VI at first passes through L1.L1 is a boost inductance, is added on sustained diode 11 and the DC/DC boost module IC1 through L1.Under their acting in conjunction, produce the required above voltage of 3V of super bright white light-emitting diode work, use for lighting LED.
IC1 is the super bright white light-emitting diode drive IC of special-purpose LED ME2100A.It should be able to keep oscillatory work at the low 1V that causes of operating voltage when following, produces output voltage in order to the driving LED light emitting diode.The DC-DC boost converter circuit of making of ME2100A only needs an inductance, electric capacity, Schottky diode, and circuit is exempted from debugging.ME2100A is that the low-noise efficient, little power consumption, the low valve valve DC-DC that adopt the manufacturing of CMOS technology boost, the voltage-stablizer integrated circuit, adopts SMD SOT-89-3 type encapsulation.Oneself power consumption electric current＜1 μ A, its operating voltage can be hanged down and be caused below the 1V, and its lowest starting voltage＜0.9V, output voltage are 3.3V (optional), and ME2100A adopts PFM frequency modulation(PFM) control mode, and operating frequency can reach 100KHz.
LED illuminating circuit module I V physical circuit figure shown in Fig. 6 b, circuit block diagram such as Fig. 6 a.It is made up of LED11～LED16,6 white ultra-high brightness LEDs, the output of its input connection module III.When module I V worked, its output voltage was added on its input port J11, and LED11～LED16 had both worked luminous.
Solar cell plate module V physical circuit figure is shown in Fig. 7 b, and Fig. 7 a is its physical circuit figure.The positive pole of D121N5819 among the anodal connection module V of solar cell output; The negative pole of the rechargeable battery among the negative pole connection module II.When fashionable greater than the conducting voltage of D12 and charged battery voltage of voltage that solar cell sent, solar cell both can charge to the energy-storage battery in the flashlight.Therefore, this flashlight is the available again electric main auxiliary charging of available rechargeable solar battery.
Flashlight switch VI is a flashlight light emitting control part, when K is closed, and module ii I, IV work, flashlight is luminous; When K opened, module ii I, IV quit work, and flashlight is not luminous.
In sum, effect of the present invention is 1) in flashlight, increased the Switching Power Supply charging circuit, better solved the AC charging function of flashlight.2) on flashlight, add the solar panel live part.3) in flashlight, add the rechargeable Ni-H 2 battery, thereby stopped in use to need often to change the drawback of battery.Therefore, solve flashlight and existed a kind of energy supply of single dependence or needs often to change the deficiency of battery, can adapt to the defective of environment for use preferably.
Claims (4)
1, a kind of solar energy/AC charging dual-purpose energy-saving flashlight control circuit is characterized in that,
Comprise Switching Power Supply conversion module (I), charging control and indicating module (II), LED driving circuit module (III), lumination of light emitting diode circuit module (IV), solar cell plate module (V) and flashlight switch (VI) are formed, the alternating current 220V civil power connects the input of Switching Power Supply conversion module (I), the output of Switching Power Supply conversion module connects the first input end of charging control and indicating module (II), the input of solar cell plate module (V) connects second input of charging control and indicating module (II), one end of the output catcher torch switch (VI) of charging control and indicating module (II), the input of another termination diode drive circuit module (III) of flashlight switch (VI), the input of the output sending and receiving optical diode illuminating circuit module (IV) of LED driving circuit module (III).
2, solar energy/AC charging dual-purpose energy-saving flashlight control circuit according to claim 1 is characterized in that,
Above-mentioned Switching Power Supply conversion module (I) comprises rectification and filter circuit (101), start-up circuit (102), high frequency transformer (103), switch triode (104) and spike absorb circuit (105), the alternating current 220V civil power connects the input of rectification and filter circuit (101), its output connects the input of start-up circuit (102) and the first input end of high frequency transformer (103) respectively, the output of start-up circuit (102) connects the first input end of switch triode (104), the output of switch triode (104) connects the input that spike absorbs circuit (105), the output of spike absorption circuit (105) connects second input of high frequency transformer (103), the DC voltage of high frequency transformer and feedback voltage connect the second and the 3rd input of switch triode (104) respectively, high frequency transformer (103) output high frequency low voltage voltage signal.
3, solar energy/AC charging dual-purpose energy-saving flashlight control circuit according to claim 1 is characterized in that,
Above-mentioned charging control and indicating module (II) comprise secondary current rectifying and wave filtering circuit (201), current-limiting circuit (202), reference voltage circuit (203), charging control triode (204), be full of indication diode (205), charging indication diode (206), bolster diode (207), rechargeable battery (208) and step-down current-limiting circuit (209), connect the first input end of secondary current rectifying and wave filtering circuit (201) from the next high frequency low voltage signal of above-mentioned Switching Power Supply conversion module (I), the input of the first output termination step-down current-limiting circuit (209) of secondary current rectifying and wave filtering circuit (201), the input of its second output termination current-limiting circuit (202), the input of its 3rd output termination charging indication diode (206), the input of the first output termination reference voltage circuit (203) of step-down current-limiting circuit (209), the first input end of its second output termination charging control triode (204), second input of an output termination charging control triode (204) of current-limiting circuit (202), its another output termination is full of the input of indication diode (205), an input of the output connection pad pillow diode (207) of charging control triode (204), be full of another input of the output connection pad pillow diode (207) of indication diode (205), the output of bolster diode (207) connects the input of rechargeable battery (208), the output of rechargeable battery (208) connects second input of secondary current rectifying and wave filtering circuit (201), the output of reference voltage circuit (203) connects the 3rd input of secondary current rectifying and wave filtering circuit (201), and charging indication diode (206) connects the four-input terminal of secondary current rectifying and wave filtering circuit (201).
4, solar energy/AC charging dual-purpose energy-saving flashlight control circuit according to claim 1 is characterized in that,
Above-mentioned LED driving circuit module (III) comprises energy storage inductor (301), DC-DC converter (302), fly-wheel diode (303), filter capacitor (304), connect the input of energy storage inductor (301) from the signal of switch VI, the output termination DC-DC converter (302) of energy storage inductor (301) and the input of fly-wheel diode (303), the output of DC-DC converter (302) is connected with the output of fly-wheel diode (303), receive the input of filter capacitor (304), output output driver module (IV) signal of fly-wheel diode (303).
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006100982636A CN1971125A (en) | 2006-12-07 | 2006-12-07 | Solar and AC charging dual-purpose energy-saving flashlight control circuit |
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| CNA2006100982636A CN1971125A (en) | 2006-12-07 | 2006-12-07 | Solar and AC charging dual-purpose energy-saving flashlight control circuit |
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| CN1971125A true CN1971125A (en) | 2007-05-30 |
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| CNA2006100982636A Pending CN1971125A (en) | 2006-12-07 | 2006-12-07 | Solar and AC charging dual-purpose energy-saving flashlight control circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654247A (en) * | 2011-03-03 | 2012-09-05 | 海洋王照明科技股份有限公司 | Anti-explosion flashlight |
| WO2013037310A1 (en) * | 2011-09-16 | 2013-03-21 | Lam Han Gang | Multifunctional energy-saving led lamp with multiple charging modes |
| CN104284470A (en) * | 2014-10-29 | 2015-01-14 | 吴建堂 | LED emergency table lamp |
| CN107591876A (en) * | 2016-07-07 | 2018-01-16 | 上海博恩世通光电股份有限公司 | The electric supply installation and method of supplying power to of solar energy mains hybrid |
-
2006
- 2006-12-07 CN CNA2006100982636A patent/CN1971125A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654247A (en) * | 2011-03-03 | 2012-09-05 | 海洋王照明科技股份有限公司 | Anti-explosion flashlight |
| CN102654247B (en) * | 2011-03-03 | 2015-07-08 | 海洋王照明科技股份有限公司 | Anti-explosion flashlight |
| WO2013037310A1 (en) * | 2011-09-16 | 2013-03-21 | Lam Han Gang | Multifunctional energy-saving led lamp with multiple charging modes |
| CN104284470A (en) * | 2014-10-29 | 2015-01-14 | 吴建堂 | LED emergency table lamp |
| CN107591876A (en) * | 2016-07-07 | 2018-01-16 | 上海博恩世通光电股份有限公司 | The electric supply installation and method of supplying power to of solar energy mains hybrid |
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